Home / 13,722.40-20,583.42-3,334.12

Finding the Fourth Proportional to 13,722.40, 20,583.42 and 3,334.12

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Solution

The fourth proportional to 13,722.40, 20,583.42 and 3,334.12 is: 5,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.40 : 20,583.42 = 3,334.12 : x
  2. Step 2: Convert to fraction form
    13,722.40/20,583.42 = 3,334.12/x
  3. Step 3: Cross multiply
    13,722.40x = 20,583.42 × 3,334.12
  4. Step 4: Simplify right side
    13,722.40x = 68,627,592.29
  5. Step 5: Solve for x
    x = 68,627,592.29/13,722.40
  6. Step 6: Final answer
    x = 5,001.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.